Question

it's very urgent.....​

Answer 1

The mole is the unit of measurement for amount of substance

It represents the amount of a substance equal to its gram atomic mass or gram molecular mass. One mole of CO

2

= one mole of C =6.02×10

23

atoms of carbon.

One mole of CO

2

= two moles of O =2×6.02×10

23

=12.04×10

23

atoms of oxygen.

One mole of CO

2

= 6.02×10

23

molecules of CO

2

Answer 2

Answer:

Q22) The smallest particle of a substance retaining chemical and physical protperties of substance, composed of two or more atoms, held by chemical forces.

1 mol carbon dioxide (CO2) contains 1 mol of carbon atoms and 2 mols of oxygen atoms.  

1 mol = 6.02 x 10^23

2 mol = X

1.02 X 10^24 are in 1 mole of CO2

Explanation:

not sure about the second question-didnt understand it.